Fabric slitter for looms



Oct. 22, 1929. T. J. 'GARISIO 1,732,678

FABRIC SLITTER FOR LOOMS Filed Dec. 26, 1928 Patented Bi l, 1929 TlEfEODORE Cl. GARISIO, F ALLENTOWN, PENNSYLVANIA FABRIC SLITTER FOR LOOMS Application filed December 26, 1928.

My invention relates to fabric slitters for looms, and has for its object a small, easily applied device (that needs no means to attach it to the loonn) to slit fabric between the so-ca-lled centre selrages, or otl'ierwise, so that while the fa ric is woven in one piece, it is wound upon the cloth beam of the 100111 in two or more strips acco .ng to the number of centre selvagee, or slits made across the in fabric.

My device is distinguished from other fabric slitters in that it is composed of only two parts, is separate from the loom, has no adjusting screws or thelilre, is carried by the .5 cloth in abutment with the br net of the 100m and partakes of the movement of the cloth passing over the breast beani so that it is free to move both laterally and vertically in accordance with. the movement of the cloth without riding up on the cloth. In other words it floats on the surface of the cloth, so to say, and stays in place.

Referring to the drawings, in which like parts are similarly designated-- l 1 is a perspective View of the slitter.

Fig. 2 is an enlarged side View.

3 is a front View. Fig. 1- is a side View of the knife.

5 is a section on line 55 of F5 2. 39 Fig. 6 is a diagram of a 100m, and my slitfor applied to the fabric.

My slittcr co sists of two parts only, a knife and a knife holder.

The knife holder is preferably made of a piece of resilient sheet n'letal bent upon itself to form a body 10 with a lmife retaining and clamping slot between the bent over parts and the upper portions of the body bent laterally substantially at right angles to the body to form wings 12.

The front of the body slopes forwardly and downwardly from where it joins the wings and is bevelled at 13 and at its extreme point "lattened at The wings 12 preferably e1:- tend forward to the plane of the flattened portion 14 snown in Fig. 2, and act as a ghind to prevent op atives from being accidentally cut by the 12.9 while handling it, and as they project forwardly the cutting point prevent the knife from riding up through the Serial No. 328,535.

fabric. While this is preferable, it is not necessary, as it is sufficient to have the wings large enough to form a good support for the device on the cloth and form an angle with the knife at its cutting point.

The knife 15, shown separate in Fig. 1, has a downwardly and forwardly inclined cutting edge 16 corresponding to the downwardly and forwardly inclined front end of the body 10. The sharpened edge 16 is more acute than the bevels 13. blade has an extension 17 from the cutting edge at 18, and pro above the wings, as shown in Figs. 1&1. 'l. sis extension has rounded corners 19 and 20 a d two holes 21 and 22. The off-set at 18 of the extension 17 facilitates grinding.

The extension is back far enough so as not to lie in the grinding plane for the knife.

To assemble, hold thebody 1O vertically on a table or the like, place the knife in the top of the slot and tap the middle of the upper edge of the extension 17 with a hannner until in place between the resilient walls of the slot. If the cutting edge of the knife projects too far, tap the rounded corner 20 until the ed 16 is inproper position. If the knife edge does not project far enough from the body 10 tap the other rounded corner 19, until the edge is properly positioned.

When cutting too long at one point on the cutting edge it dulls, and by inserting a nail, rod or the like in the forward hole 21, the edge 16 can be raised slightly to cause a new part of the edge to beat the angle between the forwardly projecting wings and body front. The nail, rod or thelike can be passed through either hole 21 or 22 to pull the knife from its slot in the body 10, but preferably through hole 22 as there will be less liability to be out by the ed 'e as the knife is pulled out of the body 10.

The fabric onthe 100111 is first cut by a penlrnife, shears or the like adjacent the breast beam, enough to insert the body with the rear face ofthe body 10 resting against the breast beam, as shown in Fig. 5, with the wings 12 resting on top of the cloth, and as the cloth is made and wound upon the cloth beam the fabric is slit by the knife.

My device can be applied to any loom, and

can be removed in a Very few minutes; has no attachment therewith and floats with the fabric, that is, in any direction excepting in the direction of winding up of the fabric, and does not tilt up or down with respect to the point of cutting.

As the knife slits the fabric, the more ohi tuse bevels 13 spread the fabric just behind the cutting point to produce slight lateral tension. 'The bevels 13 of the front of the body do not part the fabric abruptly, as in some structures, and thus prevent any tearing of the fabric.

'cloth, a knife frictionally carried by said portion between the plates, and lateral wings on said body portion for resting on the top of the cloth, the rear end of the body portion for abutting the breast of a loom.

2. A two-piece cloth slitting device, comprising a body portion folded upon itself to form a knife supporting and clamping slot, lateral wings for resting on top of the cloth and. a knife frictionally held in said slot, the rear end of said body portion arranged for abutment against the breast beam of a loom.

3. A two-piece cloth slitting device, comprising a body portion having a resilient slot therein and depending beneath the cloth, laterally and forwardly extending wings for resting on top of the cloth, and a knife frictionally held in the body portion and having a downwardly and forwardly extending front making with the plane of the forwardly extending portion of the Wings a cutting angle in which the cloth feeds, said device being solely supported by the cloth.

4:. In atwo-piece cloth slitting device, a substantially vertical body portion having a slot therein and a downwardly and forwardly inclined and beveled front, lateral wings on saidbody portion, a knife frictionally held in the slot, the angle of bevel of the front of said body being more obtuse than the sharpened edge of the knife, to open the fabric as the out proceeds, said device Y being solely supported by the fabric.

5. In a fabric slittingdevice, a vertical body. portion bent upon itself to form a clamping slot and having a downwardly and forwardly inclinedfront, the edges of which are bevelled at the slot, and wings integral with the body portion bent laterally from the sidesthereof, said wings extending forwardly over the inclined front of the body portion, a knife frictionally held in the body a portion and having a cutting edge'substantially parallel with the front of the body portion and a shank projecting above the wings having rounded front and rear corners for facilitating the adjustment of the knife in the slot.

6. In a fabric slitting device, a vertical body portion bent upon itself to form a clamping slot and having a downwardly and forwardly inclined front, the edges of which are bevelled at the slot, and wings integral with the body portion bent laterally from the sides thereof, said wings extending forwardly over the inclined front of the body portion, a knife frictionally held in the body portion and having a cutting edge substantially parallel with the front of the body portion and a shank projecting above the wings having rounded front and rear corners for facilitating the adjustment of the knife in the slot, and holes in the shank for insertion of an implement for removing the knife or adjusting the knife for wear of the cutting edge.

7. A cloth slitter comprising a shank of metal folded upon itself to form a body having a clamping slot, wings bent at right angles to each side of the body, the front of the body being forwardly and downwardly inclined and making a cutting angle into which the cloth is fed, and a knife clamped in the slot having a cutting edge projecting from the front of said body.

In testimony that I claim the foregoing as my invention, I have si ned my name hereto.

THEODO \E J. GARISIO. 

